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PoliticsFederal rulesCoast Guard
Proposed rule

Safety Zone; Straits of Mackinac, Mackinaw City, MI

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register May 5, 2026. Document 2026-08706. Updated Nov. 11, 2026.

What it does

The Coast Guard is proposing to establish a temporary safety zone for navigable waters within a 100-yard radius of the center span of the Mackinac Bridge. The safety zone is needed to protect personnel, vessels, and the marine environment from a marine event involving swimmers under the bridge. This proposed rulemaking would prohibit persons and vessels from being in the safety zone unless specifically authorized by the Captain of the Port, Sector Northern Great Lakes. We invite your comments on this proposed rulemaking.

The Coast Guard's summary, as published in the Federal Register.

What it would change

1 part of Title 33 of the Code of Federal Regulations:

33 CFR 165

Before this

122 earlier Federal Register documents under regulation identifier 1625-AA00 since Jan. 1, 2025.

Since then:

What happens next and when

Comments and related material must be received by the Coast Guard on or before June 4, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number2026-08706
ActionNotice of proposed rulemaking.
AgenciesHomeland Security Department; Coast Guard
PublishedMay 5, 2026
Comments closeJune 4, 2026
Regulation identifier (RIN)1625-AA00
DocketUSCG-2026-0360

Source: the Federal Register (public domain). The document in the Federal Register